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为提高可穿戴摩擦电传感器电极的柔性与可拉伸性,设计了一种基于商用水性高分子导电凝胶电极的摩擦电传感器,且在电极一侧表面加工得到微观结构。测试结果表明该传感器具有约100%的伸长率与优异的耐卷曲扭折性。该传感器的电压与电流信号对外界压力具有良好的线性响应,且对传感器的拉伸状态不敏感。当施加外力为50 N时(频率1 Hz),输出峰值电压为109 V,峰值电流为1.3μA;当频率从1.0 Hz变化到3.0 Hz时,峰值电压几乎无变化,峰值电流从0.65μA变化到2.1μA。将该传感器应用于人体运动与语音识别时,电压信号可以对每种动作表现出特异的波形信号,实现了4种动作以及6种礼貌用语的检测与识别,表明其在人体运动与生物特征识别用可穿戴传感器领域具有良好的应用价值。
Abstract：To improve the flexibility and stretchability of electrodes of wearable triboelectric sensors, a flexible and stretchable triboelectric sensor based on a kind of commercial water-based polymer conductive gel electrode was designed, and the microstructure was prepared on one side of the electrode. The test results show that the sensor has the elongation of about 100% and excellent resistance to curling and twisting. The voltage and current signals of the sensor have good linear response to external pressure, and are insensitive to the stretching state of the sensor. When an external force is 50 N(a frequency of 1 Hz), the output peak voltage and peak current are 109 V and 1.3 μA, respectively. When the frequency changes from 1.0 Hz to 3.0 Hz, the peak voltage changes little and the peak current changes from 0.65 μA to 2.1 μA. When the sensor is applied to the recognition of human motion and pronunciation, the voltage signal can show a unique waveform signal for each movement, and the detection and recognition of 4 kinds of actions and 6 kinds of polite expressions are realized, which indicates that it has good application value in the field of wearable sensors for human motion and biometric recognition.
[1]LU D J,LIU T,MENG X J,et al.Wearable triboelectric visual sensors for tactile perception[J].Advanced Materials,2023,35(7):e2209117.
[2]JIANG Z,CHEN N,YI G,et al.A 1.3-micrometre-thick elastic conductor for seamless on-skin and implantable sensors[J].Nature Electronics,2022,5(11):784-793.
[3]杨云,石树正,郭昀,等基于导电海绵的柔性可拉伸摩擦纳米发电机[J].微纳电子技术,2022,59(6):543-549.
[4]YANG Y,CHEN L,HE J,et al.Flexible and extendable honeycomb-shaped triboelectric nanogenerator for effective human motion energy harvesting and biomechanical sensing[J].Advanced Materials Technologies,2021,7(1):2100702.
[5]YANG Y,HOU J,GENG W P,et al.Human movement monitoring and behavior recognition for intelligent sports using customizable and flexible triboelectric nanogenerator[J].Science China-Technological Sciences,2022,65(4):826-836.
[6]FAN Y,LIU Z Y,LUO Z W,et al.Analog sensing and computing systems with low power consumption for gesture recognition[J].Advanced Intelligent Systems,2021,3(1):2000184.
[7]SHI X,HAN K,PANG K,et al.Triboelectric nanogenerators as self-powered sensors for biometric authentication[J].Nanoscale,2023,15(22):9635-9651.
[8]KIM H,SEO S.Fabrication of an imperceptible liquid metal electrode for triboelectric nanogenerator based on gallium alloys by contact printing[J].Applied Surface Science,2020,509:145353.
[9]WU Y X,LI Y S,ZOU Y,et al.A multi-mode triboelectric nanogenerator for energy harvesting and biomedical monitoring[J].Nano Energy,2022,92:106715.
[10]YU F,FENG Y Y,LIU F,et al.Carbon dots-based ultrastretchable and conductive hydrogels for high-performance tactile sensors and self-powered electronic skin[J].Small,2023,19(31):e2204365.
[11]PATNAM H,GRAHAM A,MANCHI P,et al.Singleelectrode triboelectric nanogenerators based on ionic conductive hydrogel for mechanical energy harvester and smart touch sensor applications[J].ACS Applied Materials Interfaces,2023,15(13):16768-16777.
基本信息:
DOI：10.13250/j.cnki.wndz.24010405
中图分类号:TP212
引用信息:
[1]蔡婷婷,尹振华,马鸣宇,等.用于人体运动与语音识别的柔性可拉伸摩擦电传感器[J].微纳电子技术,2024,61(01):123-129.DOI:10.13250/j.cnki.wndz.24010405.
基金信息:
吕梁市引进高层次科技人才重点研发项目(2022RC09); 山西省高等学校大学生创新创业训练计划项目(202310812005)
2024-01-08
2024-01-08
2024-01-08